Keywords: people portrait white background Brian Mosteller (born December 6, 1975) is a Special Assistant to U.S. President Barack Obama and the Director of Oval Office Operations. Brian Mosteller (born December 6, 1975) is a Special Assistant to U.S. President Barack Obama and the Director of Oval Office Operations. Brian Mosteller (born December 6, 1975) is a Special Assistant to U.S. President Barack Obama and the Director of Oval Office Operations. Brian mosteller official photo.jpg en Brian Mosteller born December 6 1975 is a Special Assistant to U S President Barack Obama and the Director of Oval Office Operations https //www flickr com/photos/145378071 N02/30585789823/ Brian Mosteller Director of Oval Office Operations https //www flickr com/people/145378071 N02 Brian Mosteller 2016-12-03 08 13 cc-zero Amitie 10g 2016-12-03 Presidency of Barack Obama Barack Obama White House